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2 inserting a group and variables – Siemens Commissioning PC Stations C79000-G8976-C156-07 User Manual

Page 91

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7

Example — OPC Application for Industrial Ethernet

91

Commissioning PC Stations - Manual and Quick Start
Release 5/2005

C79000-G8976-C156-07

7.5.2

Inserting a Group and Variables

Organizing Process Variables

The process variables of the OPC server (known as OPC items) are assigned to
groups. You therefore require an OPC group before you can insert OPC items.
Follow the steps outlined below to create a group and add items to it:

Activity

1.

After the OPC Server starts, a dialog opens in which you can create a group. Enter
“IE_Sample” as the group name and confirm your input with “OK”:

2.

Double-click on the group entry “IE_SAMPLE” to open the OPC Navigator. In the left-hand
pane, you will see the hierarchically arranged name space of the OPC variables.

3.

If you click on an element in the tree (here pump 2), the OPC items defined for this element
appear in the middle pane of the window: